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MHD simulation of the toroidal phase locking mechanism in a reversed field pinch plasma

K. Kusano, T. Tamano, T. Sato1991年被引用 24Nuclear FusionIF 3出版社

The toroidal phase locking process of kink modes in a reversed field pinch (RFP) plasma is investigated in detail by means of magnetohydrodynamic (MHD) simulation. The physical mechanism of phase locking is clarified. The two most dominant linearly unstable kink modes govern the evolution of other kink modes, whereby phase locking takes place. It is confirmed that the phase locking process is not a special phenomenon of plasmas with a resistive boundary, but a common feature of the MHD relaxation process in RFPs. The relation between the phase locking process and the MHD relaxation process is briefly discussed. It is found that phase locking is reproduced cyclically in the sustainment process.

日本語訳

反転磁場ピンチ(RFP)プラズマにおけるキンクモードのトロイダル位相ロック過程を、磁気流体力学(MHD)シミュレーションにより詳細に調べた。位相ロックの物理的メカニズムを明らかにした。最も優勢な2つの線形不安定キンクモードが他のキンクモードの時間発展を支配し、それによって位相ロックが生じることが示された。位相ロック過程は、抵抗性境界を有するプラズマに特有の現象ではなく、RFPにおけるMHD緩和過程の一般的な特徴であることが確認された。位相ロック過程とMHD緩和過程の関係について簡潔に議論した。位相ロックは維持過程において周期的に再現されることが見出された。

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MagnetohydrodynamicsReversed field pinchPinch plasma
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